101212120000020 has 96 divisors (see below), whose sum is σ = 286215284073600. Its totient is φ = 26721227737600.

The previous prime is 101212119999967. The next prime is 101212120000027. The reversal of 101212120000020 is 20000021212101.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 101212119999960 and 101212120000005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101212120000027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114086074 + ... + 114969806.

It is an arithmetic number, because the mean of its divisors is an integer number (2981409209100).

Almost surely, 2^{101212120000020} is an apocalyptic number.

101212120000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101212120000020 is an abundant number, since it is smaller than the sum of its proper divisors (185003164073580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101212120000020 is a wasteful number, since it uses less digits than its factorization.

101212120000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902745 (or 902743 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 101212120000020 its reverse (20000021212101), we get a palindrome (121212141212121).

The spelling of 101212120000020 in words is "one hundred one trillion, two hundred twelve billion, one hundred twenty million, twenty", and thus it is an aban number.